[1] Stanford Univ, Palo Alto, CA 94304 USA
[2] Univ Pittsburgh, Med Ctr, Pittsburgh, PA USA
[3] Intermt Med Ctr, Salt Lake City, UT USA
[4] Cleveland Clin, Cleveland, OH 44106 USA
[5] Univ Calif Los Angeles, Los Angeles, CA USA
[6] Hosp Univ Penn, Philadelphia, PA 19104 USA
[7] St Lukes Hosp, Med Amer Heart Inst, Kansas City, MO USA
[8] Univ Chicago, Med Ctr, Chicago, IL 60637 USA
[9] Northwestern Univ, Chicago, IL 60611 USA
[10] Washington Univ, Sch Med, St Louis, MO 63130 USA
[11] Newark Beth Israel Med Ctr, Newark, NJ USA
[12] Texas Heart Inst, Houston, TX 77025 USA
[13] XDx, Brisbane, CA USA